I've got a 1994 3000 GT, bought it new. Been great for 22 years and used only in summer yielding 76,000 miles on it.

It's a manual trans. and sporatically the clutch will go limp, no pressure. If I lift the clutch pedal manually back into position, it resumes proper pressure and works fine. The clutch fluid it full. When I lift the pedal manually, it resumes proper pressure and works fine. Any ideas what causes this?

2 Answers

You've got a dodgy cup in either the master cylinder (at the pedal end) or the slave cylinder (at the engine end).
Internally, they are basically built like an old-school bike pump, with a rubber cup that slides inside a tube. As the cup is pressed down it squirts fluid out, into a metal tube and into the slave cylinder (which is then forced to open up). The opening slave cylinder runs your clutch (disengages drive).
They often show a few signs of leaking when they are about to dog out (which yours certainly IS). Using a stethoscope (or just a rubber/plastic tube in your ear) you can sometimes hear them "squish" as they leak pressure, but unless you are going to attempt the repair yourself.... get thee to a mechanic ;)

Sounds like master cylinder may need replacing. But at its age I
would replace master cylinder, slave cylinder and the rubber hose
that connects the slave cylinder to the firewall piping. Not that hard
to do if you a little mech inclined.

Your Answer

Related Questions

It's a manual trans. and sporatically the clutch will go limp, no pressure. If I lift the clutch pedal manually back into position, it resumes proper pressure and works fine. The clutch fluid it ful...

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.